1. Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, Warsaw 02-507, Poland
2. Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409 United States
3. Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409 United States
4. Polish Academy of Sciences, Institute of Metallurgy and Materials Science, W. Reymonta 25, 30-059 Cracow, Poland
5. Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States